Abstract: Described is a method for retracting an instant message from a receiver in an instant messaging session. A request is made to retract the instant message from the receiver. If the receiver is present in the session, the instant message is removed from the user interface of the receiver. Notification is sent to the requestor to indicate whether the instant message was successfully retracted and whether the instant message was saved by the receiver. Optionally, the method allows an entry made in an instant messaging log to be retracted when the corresponding instant message is retracted.

Abstract: Described is a method for retracting an instant message from a receiver in an instant messaging session. A request is made to retract the instant message from the receiver. If the receiver is present in the session, the instant message is removed from the user interface of the receiver. Notification is sent to the requestor to indicate whether the instant message was successfully retracted and whether the instant message was saved by the receiver. Optionally, the method allows an entry made in an instant messaging log to be retracted when the corresponding instant message is retracted.

Abstract: Described is a method for retracting an instant message from a receiver in an instant messaging session. A request is made to retract the instant message from the receiver. If the receiver is present in the session, the instant message is removed from the user interface of the receiver. Notification is sent to the requestor to indicate whether the instant message was successfully retracted and whether the instant message was saved by the receiver. Optionally, the method allows an entry made in an instant messaging log to be retracted when the corresponding instant message is retracted.

Abstract: Described is a method for retracting an instant message from a receiver in an instant messaging session. A request is made to retract the instant message from the receiver. If the receiver is present in the session, the instant message is removed from the user interface of the receiver. Notification is sent to the requestor to indicate whether the instant message was successfully retracted and whether the instant message was saved by the receiver. Optionally, the method allows an entry made in an instant messaging log to be retracted when the corresponding instant message is retracted.

Abstract: Described is a method for synchronously sharing a dynamically updated image in a sharing display of a sharing computer with a viewer device. The method can be performed with a variety of viewer devices having web browsing capability. A server caches an HTML page representing at least a portion of the sharing display. An automated request for an updated image in the sharing display is sent to the server. A timestamp in the request indicates the current version of the image on the viewer device. The timestamp is compared with a timestamp of a corresponding image in the HTML page. If the timestamps are not equal, the server sends an updated image to the viewer device.

Abstract: The present invention is a method, system and apparatus for flexible image sharing. In a system for flexibly distributing imagery in an image sharing session, an image cache can be disposed between an image sharing host and a plurality of image sharing viewers. Additionally, a multipoint communications server can be disposed between the image cache and the image sharing viewers and can be communicatively linked to the image sharing host. Importantly, a pull-based subscription model can be implemented in an image cache server hosting the image cache. In particular, the model can have a configuration for registering respective ones of the image sharing viewers to receive notifications of available updated imagery. In a preferred aspect of the present invention, the image sharing host can be an application sharing host hosting a shared application among the image sharing viewers.

Abstract: The present invention is a method, system and apparatus for componentized application sharing. The system can include a multiplicity of different pluggable image processing modules. Each of the different pluggable image processing modules can conform to a single interface expected by the application sharing module. Additionally, a communicative coupling can be provided between the application sharing module and a selected one of the different image compression modules.